Home / 929,988.77-1,395,103.43-641,263.76

Finding the Fourth Proportional to 929,988.77, 1,395,103.43 and 641,263.76

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Solution

The fourth proportional to 929,988.77, 1,395,103.43 and 641,263.76 is: 961,978.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,988.77 : 1,395,103.43 = 641,263.76 : x
  2. Step 2: Convert to fraction form
    929,988.77/1,395,103.43 = 641,263.76/x
  3. Step 3: Cross multiply
    929,988.77x = 1,395,103.43 × 641,263.76
  4. Step 4: Simplify right side
    929,988.77x = 894,629,268,565.24
  5. Step 5: Solve for x
    x = 894,629,268,565.24/929,988.77
  6. Step 6: Final answer
    x = 961,978.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.